'    Copyright 2008 Jan Molnar <jan.molnar@abds.de>
'
'    This file is part of JCQ.

'    JCQ is free software: you can redistribute it and/or modify
'    it under the terms of the GNU General Public License as published by
'    the Free Software Foundation, either version 2 of the License, or
'    (at your option) any later version.

'    JCQ is distributed in the hope that it will be useful,
'    but WITHOUT ANY WARRANTY; without even the implied warranty of
'    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
'    GNU General Public License for more details.

'    You should have received a copy of the GNU General Public License
'    along with JCQ. If not, see <http://www.gnu.org/licenses/>.

Public Class ContactViewModelCache
    Private Shared _Cache As New Dictionary(Of IcqInterface.Interfaces.IContact, ContactViewModel)

    Public Shared Function GetViewModel(ByVal contact As IcqInterface.Interfaces.IContact) As ContactViewModel
        Dim vm As ContactViewModel

        SyncLock _Cache
            If _Cache.ContainsKey(contact) Then
                vm = _Cache(contact)
            Else
                vm = New ContactViewModel(contact)
                _Cache.Add(contact, vm)
            End If
        End SyncLock

        Return vm
    End Function
End Class